if (null != implementationTitle) { sb.append(IMPLEMENTATION_TITLE); sb.append(brace); sb.append(implementationTitle); sb.append(StringUtils.LINE_SEP); } if (null != implementationVersion) { sb.append(IMPLEMENTATION_VERSION); sb.append(brace); sb.append(implementationVersion); sb.append(StringUtils.LINE_SEP); } if (null != implementationVendor) { sb.append(IMPLEMENTATION_VENDOR); sb.append(brace); sb.append(implementationVendor); sb.append(StringUtils.LINE_SEP); }
if (null != specificationVersion) { sb.append(SPECIFICATION_VERSION); sb.append(brace); sb.append(specificationVersion); sb.append(StringUtils.LINE_SEP); } if (null != specificationVendor) { sb.append(SPECIFICATION_VENDOR); sb.append(brace); sb.append(specificationVendor); sb.append(StringUtils.LINE_SEP); } if (null != implementationVersion) { sb.append(IMPLEMENTATION_VERSION); sb.append(brace); sb.append(implementationVersion); sb.append(StringUtils.LINE_SEP); }
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/extension/Specification.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/extension/Extension.java
Method name: String toString() Method name: String toString()
Number of AST nodes: 15 Number of AST nodes: 15
1
if (null != implementationTitle) {
1
if (null != specificationVersion) {
2
            sb.append(IMPLEMENTATION_TITLE);
2
            sb.append(SPECIFICATION_VERSION);
3
            sb.append(brace);
3
            sb.append(brace);
4
            sb.append(implementationTitle);
4
            sb.append(specificationVersion);
5
            sb.append(StringUtils.LINE_SEP);
5
            sb.append(StringUtils.LINE_SEP);
6
        }
6
        }
7
        if (null != implementationVersion) {
7
        if (null != specificationVendor) {
8
            sb.append(IMPLEMENTATION_VERSION);
8
            sb.append(SPECIFICATION_VENDOR);
9
            sb.append(brace);
9
            sb.append(brace);
10
            sb.append(implementationVersion);
10
            sb.append(specificationVendor);
11
            sb.append(StringUtils.LINE_SEP);
11
            sb.append(StringUtils.LINE_SEP);
12
        }
12
        }
13
        if (null != implementationVendor) {
13
        if (null != implementationVersion) {
14
            sb.append(IMPLEMENTATION_VENDOR);
14
            sb.append(IMPLEMENTATION_VERSION);
15
            sb.append(brace);
15
            sb.append(brace);
16
            sb.append(implementationVendor);
16
            sb.append(implementationVersion);
17
            sb.append(StringUtils.LINE_SEP);
17
            sb.append(StringUtils.LINE_SEP);
18
        }
18
        }
Summary
Number of common nesting structure subtrees1
Number of refactorable cases0
Number of non-refactorable cases1
Time elapsed for finding largest common nesting structure subtrees (ms)0.6
Clones locationClones are in different classes
Number of node comparisons153
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements15
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)21.8
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    16
    if (null != implementationTitle)
    16
    if (null != implementationTitle)
    11
    if (null != specificationVendor)
    Differences
    Expression1Expression2Difference
    implementationTitlespecificationVendorVARIABLE_NAME_MISMATCH
    11
    if (null != specificationVendor)
    17
    sb.append(IMPLEMENTATION_TITLE);
    17
    sb.append(IMPLEMENTATION_TITLE);
    12
    sb.append(SPECIFICATION_VENDOR);
    Differences
    Expression1Expression2Difference
    IMPLEMENTATION_TITLESPECIFICATION_VENDORVARIABLE_NAME_MISMATCH
    12
    sb.append(SPECIFICATION_VENDOR);
    18
    sb.append(brace);
    13
    sb.append(brace);
    19
    sb.append(implementationTitle);
    19
    sb.append(implementationTitle);
    14
    sb.append(specificationVendor);
    Differences
    Expression1Expression2Difference
    implementationTitlespecificationVendorVARIABLE_NAME_MISMATCH
    14
    sb.append(specificationVendor);
    20
    sb.append(StringUtils.LINE_SEP);
    15
    sb.append(StringUtils.LINE_SEP);
    21
    if (null != implementationVersion)
    21
    if (null != implementationVersion)
    16
    if (null != implementationVersion)
    Differences
    Expression1Expression2Difference
    java.lang.Stringorg.apache.tools.ant.taskdefs.optional.extension.DeweyDecimalVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.String of variable implementationVersion does not match with type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable implementationVersion
    • Make classes java.lang.String and org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal extend a common superclass
    16
    if (null != implementationVersion)
    22
    sb.append(IMPLEMENTATION_VERSION);
    17
    sb.append(IMPLEMENTATION_VERSION);
    23
    sb.append(brace);
    18
    sb.append(brace);
    24
    sb.append(implementationVersion);
    24
    sb.append(implementationVersion);
    19
    sb.append(implementationVersion);
    Differences
    Expression1Expression2Difference
    java.lang.Stringorg.apache.tools.ant.taskdefs.optional.extension.DeweyDecimalVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.String of variable implementationVersion does not match with type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable implementationVersion
    • Make classes java.lang.String and org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal extend a common superclass
    19
    sb.append(implementationVersion);
    25
    sb.append(StringUtils.LINE_SEP);
    20
    sb.append(StringUtils.LINE_SEP);
    26
    if (null != implementationVendor)
    26
    if (null != implementationVendor)
    6
    if (null != specificationVersion)
    Differences
    Expression1Expression2Difference
    implementationVendorspecificationVersionVARIABLE_NAME_MISMATCH
    java.lang.Stringorg.apache.tools.ant.taskdefs.optional.extension.DeweyDecimalVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.String of variable implementationVendor does not match with type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable specificationVersion
    • Make classes java.lang.String and org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal extend a common superclass
    6
    if (null != specificationVersion)
    27
    sb.append(IMPLEMENTATION_VENDOR);
    27
    sb.append(IMPLEMENTATION_VENDOR);
    7
    sb.append(SPECIFICATION_VERSION);
    Differences
    Expression1Expression2Difference
    IMPLEMENTATION_VENDORSPECIFICATION_VERSIONVARIABLE_NAME_MISMATCH
    7
    sb.append(SPECIFICATION_VERSION);
    28
    sb.append(brace);
    8
    sb.append(brace);
    29
    sb.append(implementationVendor);
    29
    sb.append(implementationVendor);
    9
    sb.append(specificationVersion);
    Differences
    Expression1Expression2Difference
    implementationVendorspecificationVersionVARIABLE_NAME_MISMATCH
    java.lang.Stringorg.apache.tools.ant.taskdefs.optional.extension.DeweyDecimalVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.String of variable implementationVendor does not match with type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable specificationVersion
    • Make classes java.lang.String and org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal extend a common superclass
    9
    sb.append(specificationVersion);
    30
    sb.append(StringUtils.LINE_SEP);
    10
    sb.append(StringUtils.LINE_SEP);
    Precondition Violations (4)
    Row Violation
    1Type java.lang.String of variable implementationVersion does not match with type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable implementationVersion
    2Type java.lang.String of variable implementationVersion does not match with type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable implementationVersion
    3Type java.lang.String of variable implementationVendor does not match with type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable specificationVersion
    4Type java.lang.String of variable implementationVendor does not match with type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable specificationVersion